DeviceKit 003 for NetBSD

I have completed a port of the base DeviceKit component to NetBSD.
DeviceKit's only responsibility is device attach/detach/change notification;
effort is still required to port DeviceKit-power and DeviceKit-disks.

There are two files here; the first is a patch to the original DeviceKit-003
distribution that allows building devkit-gobject (the client library)
separately from devkitd. The NetBSD devkitd is distributed separately and
depends on devkit-gobject.

The DeviceKit-003 patch along with devkitd-jmcneill-003 can be found at the
following URL: